e8e5752dc0
kernel BUG at drivers/net/phy/mdio_bus.c:165!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
How?
mdiobus_alloc() sets bus->state = MDIOBUS_ALLOCATED.
mdiobus_register() sets bus->state = MDIOBUS_REGISTERED but then can
fail (mdiobus_scan()) returning an error to the caller.
The caller aborts correctly with mdiobus_free() which does:
if (bus->state == MDIOBUS_ALLOCATED) {
kfree(bus);
return;
}
BUG_ON(bus->state != MDIOBUS_UNREGISTERED);
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|---|---|---|
| .. | ||
| broadcom.c | ||
| cicada.c | ||
| davicom.c | ||
| fixed.c | ||
| icplus.c | ||
| Kconfig | ||
| lxt.c | ||
| Makefile | ||
| marvell.c | ||
| mdio-bitbang.c | ||
| mdio-ofgpio.c | ||
| mdio_bus.c | ||
| phy.c | ||
| phy_device.c | ||
| qsemi.c | ||
| realtek.c | ||
| smsc.c | ||
| vitesse.c | ||